RR1220Q-19R1-D-M Equivalent & Substitute Parts

Part Overview

The RR1220Q-19R1-D-M is a 19.1 Ohm ±0.5% thin film chip resistor manufactured by Susumu in 0805 (2012 Metric) package format. This surface mount device is rated for 0.1W (1/10W) power dissipation and operates across the temperature range of -55°C to 125°C. The component is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection. This part is currently in active production status with 828 pieces available in inventory. Equivalent and substitute parts are identified to support procurement flexibility, design redundancy, and supply chain continuity.

Substiute Parts

RR1220Q-19R1-D-M

SusumuIn Stock: 935RR1220Q-19R1-D-M Datasheet

Current PartRFQ

5-1625868-4

TE Connectivity Passive ProductIn Stock: 23655-1625868-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RR1220Q-19R1-D-M is determined by the following criteria:

Mandatory Matching Parameters:

• Resistance value: 19.1 Ohms (exact match required)
• Package / Case: 0805 (2012 Metric) (physical compatibility)
• Composition: Thin Film (electrical performance characteristics)
• Number of Terminations: 2 (circuit connectivity)

Allowable Parameter Variations:

• Tolerance: Substitute tolerance must be equal to or tighter than ±0.5%
• Power Rating: Substitute power rating must be equal to or greater than 0.1W
• Temperature Coefficient: Substitute value must be equal to or lower in absolute value
• Operating Temperature Range: Substitute range must encompass or exceed -55°C ~ 125°C
• RoHS Status: Substitute must maintain ROHS3 compliance
• Moisture Sensitivity Level: Substitute must maintain MSL 1 rating

The substitute part 5-1625868-4 (TE Connectivity Passive Product) meets all mandatory matching parameters and exceeds allowable variations in tolerance, power rating, and temperature coefficient, making it a valid substitute.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 5-1625868-4 from TE Connectivity Passive Product is a valid equivalent for the RR1220Q-19R1-D-M. Selection between these components should be based on the following factors:

Primary Selection Criteria:

• Both components are ROHS3 compliant and maintain MSL 1 moisture sensitivity ratings, satisfying regulatory and handling requirements
• Both components are active production status parts with established supply availability
• Identical resistance value (19.1 Ohms) and package format (0805) ensure direct circuit compatibility

Substitute Advantages:

• The TE Connectivity part 5-1625868-4 provides superior tolerance specification (±0.1% versus ±0.5%), resulting in tighter resistance accuracy
• Higher power rating (0.25W versus 0.1W) provides additional thermal margin in the application
• Lower temperature coefficient (±25ppm/°C versus ±50ppm/°C) delivers improved temperature stability
• Extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C) supports broader environmental applications

Physical Considerations:

• Maximum seated height differs by 0.006" (0.15mm), remaining within standard 0805 package tolerances and suitable for standard PCB assembly processes

Frequently Asked Questions (FAQ)

Q: Can the 5-1625868-4 be used as a direct replacement for the RR1220Q-19R1-D-M?

A: Yes. Both components share identical resistance value (19.1 Ohms), package format (0805), composition (thin film), and termination count (2). The substitute meets all mandatory matching parameters and exceeds allowable variations in tolerance, power rating, and temperature coefficient.

Q: What is the difference in tolerance between these two resistors?

A: The RR1220Q-19R1-D-M has ±0.5% tolerance, while the 5-1625868-4 has ±0.1% tolerance. The substitute provides tighter tolerance, meaning the actual resistance value will remain closer to the nominal 19.1 Ohm specification across the component population.

Q: Does the higher power rating of the substitute affect circuit performance?

A: No. The 5-1625868-4 is rated for 0.25W (1/4W) compared to the original 0.1W (1/10W) rating. A higher power rating indicates greater thermal dissipation capability and does not negatively impact circuit operation when used in applications designed for the lower power rating.

Q: Are there physical compatibility concerns with the different maximum heights?

A: No. The RR1220Q-19R1-D-M has a maximum seated height of 0.020" (0.50mm), while the 5-1625868-4 has 0.026" (0.65mm). This 0.006" (0.15mm) difference is within standard 0805 package tolerances and compatible with standard PCB assembly equipment and processes.

Q: Do both components meet the same regulatory compliance standards?

A: Yes. Both the RR1220Q-19R1-D-M and 5-1625868-4 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings. Both components satisfy identical regulatory and handling requirements.

Q: What is the temperature coefficient difference, and does it matter for my application?

A: The RR1220Q-19R1-D-M has a temperature coefficient of ±50ppm/°C, while the 5-1625868-4 has ±25ppm/°C. The substitute exhibits half the resistance drift over temperature changes. Applications requiring high temperature stability benefit from the lower temperature coefficient of the substitute part.

Q: Can I use the 5-1625868-4 in applications with operating temperatures above 125°C?

A: The 5-1625868-4 is rated for -55°C ~ 155°C, extending 30°C above the original part's -55°C ~ 125°C range. The substitute supports operation in higher temperature environments where the original part cannot be used.